MOLNAR TECHNOLOGIES 454-4250DC6F-OPS-6385 Molnar Technologies 454-4250DC6F-OPS-6385 Forged Big Block Chevy Crankshaft

Build a strong, dependable Big Block Chevy rotating assembly with the Molnar Technologies 454-4250DC6F-OPS-6385 crankshaft. Designed for 454-main BBC applications, this forged-steel crankshaft provides a durable foundation for performance street, drag racing, and high-output engine builds. Its internally balanced design helps support smooth engine operation when matched with the proper pistons, connecting rods, harmonic balancer, and flywheel or flexplate.
The crankshaft is engineered for use with a one-piece rear main seal arrangement and is supplied as an individual component. Forged steel construction delivers excellent strength and resistance to fatigue under demanding operating conditions, making it well suited for builders who require dependable performance from a high-stroke Big Block Chevy combination. The journal configuration is tailored to 454 mains, helping ensure compatibility with the appropriate block and rotating assembly components.
Before installation, verify block, bearing, piston, connecting rod, oil pan, timing, and accessory compatibility for the intended application. Proper balancing is essential, even with an internally balanced crankshaft, and the complete rotating assembly should be professionally checked and balanced according to the engine builder’s specifications. The Molnar Technologies part number 454-4250DC6F-OPS-6385 is a practical choice for performance enthusiasts and professional builders seeking a forged crankshaft for a one-piece-seal Big Block Chevy engine.

Features:

• Forged steel construction for strength and durability in demanding performance applications

• Designed for Big Block Chevy engines using 454 mains

• Internally balanced configuration for compatible rotating assemblies

• High-stroke crankshaft design for performance-oriented engine builds

• Compatible with one-piece rear main seal applications

• Supplied as an individual crankshaft

• Molnar Technologies part number 454-4250DC6F-OPS-6385